Pivot fob swinging casements



.H( "D.HOPE. PIVOT FOR SWINGING CASEM ENTS.

APPLICATION min APR. 4. 191a,

Ptented N0v. '11, 1919;

mow MOI/ope? %FW J ATTORNEY H D i PIVOT FOR swmemc CASEMENTS.

APPLICATION FILED APR 4- |91B. 1,321,442. v Patented Nov. 11, 1919.

2 SHEETS-SHEET '2.

INVENTOR A BY H, D. Hope;

ATTORNEY HENRY'DONALD HOPE, F BIRMINGHAM, ENGLAND.

PIVOTFOR SWIIIGING CASEMENTS.

' Specification of Letters Patent.

Patented Nov. 11, 1919.

Application filed-April 4, 1918. Serial No. 226,678.

To all whom'itmag/ concern:

Be it known that I, HENRY DONALD Horn,

a subject of the King of Grreat Britain and Ireland, and residing atLionel street, Birmingham, in the county of WVarwick, England, haveinvented certain new and useful Improvements Relating to Pivots forSwinging Gasements, of which the following is a specification.

This invention relates to the pivots or joints between a movablecasement and the fixed frame on which it is mounted.

The object of the invention is to provide a joint with large bearingsurfaces, giving complete closure between the movable casement and itsframe, the parts being of such form that they can be quickly andeconomically manufactured.

The invention consists in making the joint from a pair of flat bottomedcups which can be pressed from thin sheet metal blanks, the rim of onecup being housed an easy fit inside the other cup. One of the said cupsforms the pivot or trunnion, the other cup forms the bush or bearing ofthe joint. The flat bottoms of the two cups are fastened, by suitablemeans, to the casement and its fixed frame respectively.

The invention can be applied to casements of wood, iron or steel.

I append drawings illustrating my invention as carried out in one formapplied to easements made of standard rolled steel sections.

Figure 1 is a section through the axis of the joint, the swingingcasement membere C being in a position parallel to the fixed framemember F. I

Fig. 2 is a section of'the fixed frame member F showing the larger cup 7in elevation.

Fig. 3 is a section of the swinging member at the plane aa of Fig. 6.

Fig. 4 is a section of the swinging member at the plane 5-?) of Fig. 6.

Fig. 5 is an elevation of the fixed member and its cup attached, lookingin the direction of the arrow 1 of Fig. 2.

Fig. 6 is an elevation of the swinging member and its attached cup,looking in the direction of the arrow 2 of Fig. 3.

Fig. 7 is an elevation looking parallel to the plane of the casement,showing the swinging member in its closed position, that 1s, parallel toand 1n close contact wlth the fixed frame member.

Fig. 8 is a similar elevation to that shown in. Fig. 7 but with theswinging member at r ght angles to the fixed frame member.

Fig. 9 is an elevation from the outside of the casement frame looking inthe direction of the arrow 3 of Fig. 8.

Fig. 10 is an elevation from the inside of the casement frame looking inthe direction of the arrow 4 of Fig. 8.

The fixed frame member F is made up of two similar lengths of standardsection as shown at Fig. 2, which are welded together at w (Fig. 5). Theswinging member is made up of two separate lengths of slightly differentsection as illustrated in Figs. 3 and 4:, which are welded together at4.0 (Fig. 6.)

In carrying my invention into effect as applied to steel easements, thediameter of the larger cup f of the joint is preferably made greaterthan the depth of the standard sections used for the casement and framerespectively. In a well known standard section of casement frame fixedmember F, two flanges project from one side of the web. At the placewhere the joint is to be placed the flanges are cut away, by end millingor other suitable operation, to receive the larger cup f of the pairwhich constitute the joint. The cup may be a force fit in the space soformed, and its fiat bottom is fastened to the web of the frame member.The flange of the movable casement member C is cut away in a similarmanner but to a slightly larger diameter to give a working clearance forthe larger cup, and the smaller cup 0 is similarly fastened to the webof the memberconcentrically to the cut-away flange space. The cups maybe of steel or iron or non-corrosive metal.

The fastening of the flat bottoms of the cups to the webs of thestandard sections may be by means of screws, rivets or welding. In theexample illustrated the fastening is efiected by rivets 1".

My invention can be applied to swinging easements of any angle of swingaxis; that is, either horizontal, vertical or inclined.

It will be seen that a casement joint made according to my inventionpossesses the following advantages Large bearing surface;

Complete closure of the joint, leaving no daylight space for the entryof air or water, as in the usual forms; and

Economy in production, no turned parts being required as in the usualforms.

Having now described my invention, What I claim as new and desire tosecure by Letters Patent is The combination with fixed and swingingmembers each composed of channeled and flanged sections, cut away at themeeting ends of the sections to leave opposed flat web portions, of ajoint composed of a pair of flat bottomed cups, means for fastening thefiat bottom of one cup to the flat web portion of the fixed member,means for fastening the flat bottom of the other cup to the web portionof the swinging member, the cup on the fixed member being larger indiameter than the other cup, and the flanges of the sections forming theswinging memher being cut away near the sides of the cup to allow forrelative rotation between the cups when one is received within the othersubstantially as described.

In testimony whereof I have signed my name to this specification.

HENRY DONALD HOPE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

